The cetartiodactyls include a large number of familiar beasts, including whales, dolphins, pigs, hippos, cattle, deer and antelope. These are the artiodactyls or "even-toed ungulates" plus whales. Obviously the number of toes in whales is a somewhat moot point. Except for some early whales, most of the cetartiodactyl groups lack even minimal coverage in Palæos at the moment, so we will defer most discussion.

The cetartiodactyls include a large number of familiar beasts, including whales, dolphins, pigs, hippos, cattle, deer and antelope. These are the artiodactyls or "even-toed ungulates" plus whales. Obviously the number of toes in whales is a somewhat moot point. Except for some early whales, most of the cetartiodactyl groups lack even minimal coverage in Palæos at the moment, so we will defer most discussion.

O’Leary, M. A. 2001. The phylogenetic position of cetaceans: Further combined data analyses, comparisons with the stratigraphic record and a discussion of character optimization. ''American Zoologist'' 41: 487-506.